1969

Ion Gresser, American (Harvard) researcher working in France, published experiments showing that interferon prevented cancers in mice: “Cancer changed the whole ball game for interferon once again. It went from the ‘antiviral penicillin’ to the ‘magic bullet’” (Hall, 155-156). Hans Strander, in Stockholm, begins testing his and Kari Cantell’s leukocyte-derived interferon with bone sarcomas, incorrectly believed to be caused by viruses (162).